<?php

include './phpqrcode/phpqrcode.php';  

$value = $_REQUEST['url']; //二维码内容 

$errorCorrectionLevel = 'L';//容错级别 

$matrixPointSize = 8;//生成图片大小 

//生成二维码图片 
$logo = false ;//准备好的logo图片 

$QR = false ;//已经生成的原始二维码图 

QRcode::png($value, $QR , $errorCorrectionLevel, $matrixPointSize, 2); 

QRcode::png($value, $QR , $errorCorrectionLevel, $matrixPointSize, 2); 



   

if ($logo !== FALSE) { 

    $QR = imagecreatefromstring(file_get_contents($QR)); 

    $logo = imagecreatefromstring(file_get_contents($logo)); 

    $QR_width = imagesx($QR);//二维码图片宽度 

    $QR_height = imagesy($QR);//二维码图片高度 

    $logo_width = imagesx($logo);//logo图片宽度 

    $logo_height = imagesy($logo);//logo图片高度 

    $logo_qr_width = $QR_width / 5; 

    $scale = $logo_width/$logo_qr_width; 

    $logo_qr_height = $logo_height/$scale; 

    $from_width = ($QR_width - $logo_qr_width) / 2; 

    //重新组合图片并调整大小 

    imagecopyresampled($QR, $logo, $from_width, $from_width, 0, 0, $logo_qr_width,  

    $logo_qr_height, $logo_width, $logo_height); 

} 

//输出图片 

imagepng($QR, 'helloweba.png'); 

echo '<img src="helloweba.png">';